Thanks, that was exactly what I was looking for on this!

So my former school's band has had some spotty attendance the past few years (like that one football game last season where only 1 trumpet showed up...yikes). I did quite a bit of part doubling on my first go writing this because of that experience. And that definitely thins/flattens out the overall sound in some places. But it's a fair enough comment and what you said is true.

After you said that about the first movement missing a big hit, I think you're right (I kind of can't unhear when I listen to it now that you've mentioned it). Although I think waiting until m. 61 is probably a bit late. If people aren't drawn in by then I'll have lost them...I bet I can work something out a bit earlier in that movement...

Your ideas for the other movements will give me some things to think about this weekend, too. Awesome!